.flex-basis{
    display:flex;
    height: 500px;
}

.flex-basis div:nth-child(1){
    flex-basis: 60px;
}


.flex-basis div:nth-child(2){
    flex-basis: 90px;
}


.flex-basis div:nth-child(3){
    flex-basis: 120px;
}


.flex-basis div:nth-child(4){
    flex-basis: 150px;
}